func createBuildEnvironment(config *api.Config) []string {
env, err := scripts.GetEnvironment(config)
if err != nil {
glog.V(3).Infof("No user environment provided (%v)", err)
}
return append(scripts.ConvertEnvironment(env), scripts.ConvertEnvironmentList(config.Environment)...)
}
func (builder *STI) createBuildEnvironment() []string {
env, err := scripts.GetEnvironment(builder.config)
if err != nil {
glog.V(3).Infof("No user environment provided (%v)", err)
}
return append(scripts.ConvertEnvironment(env), builder.generateConfigEnv()...)
}
// CreateDockerfile creates the ONBUILD Dockerfile
func (b *OnBuild) CreateDockerfile(config *api.Config) error {
buffer := bytes.Buffer{}
uploadDir := filepath.Join(config.WorkingDir, "upload", "src")
buffer.WriteString(fmt.Sprintf("FROM %s\n", config.BuilderImage))
entrypoint, err := GuessEntrypoint(b.fs, uploadDir)
if err != nil {
return err
}
env, err := scripts.GetEnvironment(config)
if err != nil {
glog.V(1).Infof("Environment: %v", err)
} else {
buffer.WriteString(scripts.ConvertEnvironmentToDocker(env))
}
// If there is an assemble script present, run it as part of the build process
// as the last thing.
if b.hasAssembleScript(config) {
buffer.WriteString(fmt.Sprintf("RUN sh assemble\n"))
}
// FIXME: This assumes that the WORKDIR is set to the application source root
// directory.
buffer.WriteString(fmt.Sprintf(`ENTRYPOINT ["./%s"]`+"\n", entrypoint))
return b.fs.WriteFile(filepath.Join(uploadDir, "Dockerfile"), buffer.Bytes())
}
// Execute runs the specified STI script in the builder image.
func (b *STI) Execute(command string, config *api.Config) error {
glog.V(2).Infof("Using image name %s", config.BuilderImage)
env, err := scripts.GetEnvironment(config)
if err != nil {
glog.V(1).Infof("No .sti/environment provided (%v)", err)
}
buildEnv := append(scripts.ConvertEnvironment(env), b.generateConfigEnv()...)
errOutput := ""
outReader, outWriter := io.Pipe()
errReader, errWriter := io.Pipe()
defer outReader.Close()
defer outWriter.Close()
defer errReader.Close()
defer errWriter.Close()
externalScripts := b.externalScripts[command]
// if LayeredBuild is called then all the scripts will be placed inside the image
if config.LayeredBuild {
externalScripts = false
}
opts := dockerpkg.RunContainerOptions{
Image: config.BuilderImage,
Stdout: outWriter,
Stderr: errWriter,
PullImage: config.ForcePull,
ExternalScripts: externalScripts,
ScriptsURL: config.ScriptsURL,
Destination: config.Destination,
Command: command,
Env: buildEnv,
PostExec: b.postExecutor,
}
if !config.LayeredBuild {
wg := sync.WaitGroup{}
wg.Add(1)
uploadDir := filepath.Join(config.WorkingDir, "upload")
// TODO: be able to pass a stream directly to the Docker build to avoid the double temp hit
r, w := io.Pipe()
go func() {
var err error
defer func() {
w.CloseWithError(err)
if r := recover(); r != nil {
glog.Errorf("recovered panic: %#v", r)
}
wg.Done()
}()
err = b.tar.CreateTarStream(uploadDir, false, w)
}()
opts.Stdin = r
defer wg.Wait()
}
go func(reader io.Reader) {
scanner := bufio.NewReader(reader)
for {
text, err := scanner.ReadString('\n')
if err != nil {
// we're ignoring ErrClosedPipe, as this is information
// the docker container ended streaming logs
if glog.V(2) && err != io.ErrClosedPipe {
glog.Errorf("Error reading docker stdout, %v", err)
}
break
}
if glog.V(2) || config.Quiet != true || command == api.Usage {
glog.Info(text)
}
}
}(outReader)
go dockerpkg.StreamContainerIO(errReader, &errOutput, glog.Error)
err = b.docker.RunContainer(opts)
if e, ok := err.(errors.ContainerError); ok {
return errors.NewContainerError(config.BuilderImage, e.ErrorCode, errOutput)
}
return err
}
// PostExecute allows to execute post-build actions after the Docker build
// finishes.
func (b *STI) PostExecute(containerID, location string) error {
var (
err error
previousImageID string
)
if b.incremental && b.config.RemovePreviousImage {
if previousImageID, err = b.docker.GetImageID(b.config.Tag); err != nil {
glog.Errorf("Error retrieving previous image's metadata: %v", err)
}
}
env, err := scripts.GetEnvironment(b.config)
if err != nil {
glog.V(1).Infof("No .sti/environment provided (%v)", err)
}
buildEnv := append(scripts.ConvertEnvironment(env), b.generateConfigEnv()...)
runCmd := b.scriptsURL[api.Run]
if strings.HasPrefix(runCmd, "image://") {
// scripts from inside of the image, we need to strip the image part
runCmd = filepath.Join(strings.TrimPrefix(runCmd, "image://"), api.Run)
} else {
// external scripts, in which case we're taking the directory to which they
// were extracted and append scripts dir and name
runCmd = filepath.Join(location, "scripts", api.Run)
}
existingLabels, err := b.docker.GetLabels(b.config.BuilderImage)
if err != nil {
glog.Errorf("Unable to read existing labels from current builder image %s", b.config.BuilderImage)
}
opts := dockerpkg.CommitContainerOptions{
Command: append([]string{}, runCmd),
Env: buildEnv,
ContainerID: containerID,
Repository: b.config.Tag,
Labels: mergeLabels(util.GenerateOutputImageLabels(b.sourceInfo, b.config), existingLabels),
}
imageID, err := b.docker.CommitContainer(opts)
if err != nil {
return errors.NewBuildError(b.config.Tag, err)
}
b.result.Success = true
b.result.ImageID = imageID
if len(b.config.Tag) > 0 {
glog.V(1).Infof("Successfully built %s", b.config.Tag)
} else {
glog.V(1).Infof("Successfully built %s", imageID)
}
if b.incremental && b.config.RemovePreviousImage && previousImageID != "" {
glog.V(1).Infof("Removing previously-tagged image %s", previousImageID)
if err = b.docker.RemoveImage(previousImageID); err != nil {
glog.Errorf("Unable to remove previous image: %v", err)
}
}
if b.config.CallbackURL != "" {
b.result.Messages = b.callbackInvoker.ExecuteCallback(b.config.CallbackURL,
b.result.Success, b.result.Messages)
}
return nil
}
// Execute runs the specified STI script in the builder image.
func (b *STI) Execute(command string, config *api.Config) error {
glog.V(2).Infof("Using image name %s", config.BuilderImage)
env, err := scripts.GetEnvironment(config)
if err != nil {
glog.V(1).Infof("No .sti/environment provided (%v)", err)
}
buildEnv := append(scripts.ConvertEnvironment(env), b.generateConfigEnv()...)
uploadDir := filepath.Join(config.WorkingDir, "upload")
tarFileName, err := b.tar.CreateTarFile(config.WorkingDir, uploadDir)
if err != nil {
return err
}
tarFile, err := b.fs.Open(tarFileName)
if err != nil {
return err
}
defer tarFile.Close()
errOutput := ""
outReader, outWriter := io.Pipe()
errReader, errWriter := io.Pipe()
defer outReader.Close()
defer outWriter.Close()
defer errReader.Close()
defer errWriter.Close()
externalScripts := b.externalScripts[command]
// if LayeredBuild is called then all the scripts will be placed inside the image
if config.LayeredBuild {
externalScripts = false
}
opts := docker.RunContainerOptions{
Image: config.BuilderImage,
Stdout: outWriter,
Stderr: errWriter,
PullImage: config.ForcePull,
ExternalScripts: externalScripts,
ScriptsURL: config.ScriptsURL,
Destination: config.Destination,
Command: command,
Env: buildEnv,
PostExec: b.postExecutor,
}
if !config.LayeredBuild {
opts.Stdin = tarFile
}
go func(reader io.Reader) {
scanner := bufio.NewReader(reader)
for {
text, err := scanner.ReadString('\n')
if err != nil {
// we're ignoring ErrClosedPipe, as this is information
// the docker container ended streaming logs
if glog.V(2) && err != io.ErrClosedPipe {
glog.Errorf("Error reading docker stdout, %v", err)
}
break
}
if glog.V(2) || config.Quiet != true || command == api.Usage {
glog.Info(text)
}
}
}(outReader)
go streamContainerError(errReader, &errOutput, config)
err = b.docker.RunContainer(opts)
if e, ok := err.(errors.ContainerError); ok {
return errors.NewContainerError(config.BuilderImage, e.ErrorCode, errOutput)
}
return err
}
// Execute runs the specified STI script in the builder image.
func (b *STI) Execute(command string, user string, config *api.Config) error {
glog.V(2).Infof("Using image name %s", config.BuilderImage)
env, err := scripts.GetEnvironment(config)
if err != nil {
glog.V(1).Infof("No user environment provided (%v)", err)
}
buildEnv := append(scripts.ConvertEnvironment(env), b.generateConfigEnv()...)
errOutput := ""
outReader, outWriter := io.Pipe()
errReader, errWriter := io.Pipe()
defer outReader.Close()
defer outWriter.Close()
defer errReader.Close()
defer errWriter.Close()
externalScripts := b.externalScripts[command]
// if LayeredBuild is called then all the scripts will be placed inside the image
if config.LayeredBuild {
externalScripts = false
}
opts := dockerpkg.RunContainerOptions{
Image: config.BuilderImage,
Stdout: outWriter,
Stderr: errWriter,
// The PullImage is false because the PullImage function should be called
// before we run the container
PullImage: false,
ExternalScripts: externalScripts,
ScriptsURL: config.ScriptsURL,
Destination: config.Destination,
Command: command,
Env: buildEnv,
User: user,
PostExec: b.postExecutor,
NetworkMode: string(config.DockerNetworkMode),
CGroupLimits: config.CGroupLimits,
CapDrop: config.DropCapabilities,
}
// If there are injections specified, override the original assemble script
// and wait till all injections are uploaded into the container that runs the
// assemble script.
injectionComplete := make(chan struct{})
var injectionError error
if len(config.Injections) > 0 && command == api.Assemble {
workdir, err := b.docker.GetImageWorkdir(config.BuilderImage)
if err != nil {
return err
}
util.FixInjectionsWithRelativePath(workdir, &config.Injections)
injectedFiles, err := util.ExpandInjectedFiles(config.Injections)
if err != nil {
return err
}
rmScript, err := util.CreateInjectedFilesRemovalScript(injectedFiles, "/tmp/rm-injections")
if err != nil {
return err
}
defer os.Remove(rmScript)
opts.CommandOverrides = func(cmd string) string {
return fmt.Sprintf("while [ ! -f %q ]; do sleep 0.5; done; %s; result=$?; source %[1]s; exit $result",
"/tmp/rm-injections", cmd)
}
originalOnStart := opts.OnStart
opts.OnStart = func(containerID string) error {
defer close(injectionComplete)
if err != nil {
injectionError = err
return err
}
glog.V(2).Info("starting the injections uploading ...")
for _, s := range config.Injections {
if err := b.docker.UploadToContainer(s.SourcePath, s.DestinationDir, containerID); err != nil {
injectionError = util.HandleInjectionError(s, err)
return err
}
}
if err := b.docker.UploadToContainer(rmScript, "/tmp/rm-injections", containerID); err != nil {
injectionError = util.HandleInjectionError(api.InjectPath{SourcePath: rmScript, DestinationDir: "/tmp/rm-injections"}, err)
return err
}
if originalOnStart != nil {
return originalOnStart(containerID)
}
return nil
}
} else {
close(injectionComplete)
}
wg := sync.WaitGroup{}
if !config.LayeredBuild {
wg.Add(1)
uploadDir := filepath.Join(config.WorkingDir, "upload")
// TODO: be able to pass a stream directly to the Docker build to avoid the double temp hit
r, w := io.Pipe()
go func() {
// Wait for the injections to complete and check the error. Do not start
// streaming the sources when the injection failed.
<-injectionComplete
if injectionError != nil {
wg.Done()
return
}
glog.V(2).Info("starting the source uploading ...")
var err error
defer func() {
w.CloseWithError(err)
if r := recover(); r != nil {
glog.Errorf("recovered panic: %#v", r)
}
wg.Done()
}()
err = b.tar.CreateTarStream(uploadDir, false, w)
}()
opts.Stdin = r
defer wg.Wait()
}
go func(reader io.Reader) {
scanner := bufio.NewReader(reader)
for {
text, err := scanner.ReadString('\n')
if err != nil {
// we're ignoring ErrClosedPipe, as this is information
// the docker container ended streaming logs
if glog.V(2) && err != io.ErrClosedPipe {
glog.Errorf("Error reading docker stdout, %v", err)
}
break
}
// Nothing is printed when the quiet option is set
if config.Quiet {
continue
}
// The log level > 3 forces to use glog instead of printing to stdout
if glog.V(3) {
glog.Info(text)
continue
}
fmt.Fprintf(os.Stdout, "%s\n", strings.TrimSpace(text))
}
}(outReader)
go dockerpkg.StreamContainerIO(errReader, &errOutput, glog.Error)
err = b.docker.RunContainer(opts)
if util.IsTimeoutError(err) {
// Cancel waiting for source input if the container timeouts
wg.Done()
}
if e, ok := err.(errors.ContainerError); ok {
return errors.NewContainerError(config.BuilderImage, e.ErrorCode, errOutput)
}
return err
}